Interrupted concave to separate dust from cigarette machine feeds



June 27, 1933. s rr 1,915,554

INTERRUPTED CONCAVE TO SEPARATE DUST FROM CIGARETTE MACHINE FEEDS Filed Oct. 27. 1932 FIG! FIG. 2

720 Q I I 1 ATTORNEY Patented June 27, 1933 UNITED STATES PATENT oFric ELIBERON 1). SMITH, or BROOKLYN, new YonK, AssIGNon TO AMERICAN MACHINE & I

FOUNDRY COMPANY, A CORPORATION on NEW JERSEY INTERRUPTED CONCAVE TO SEPARATE DUST FROM. CIGARETTE MACHINE FEEDS Application filed October 27, 1932.

. This invention relates to an improvement in cigarette machine feeds, and more partlcularly in the concave partially surrounding the picker roller. Its main object is to remove and separate dust accumulating on the concave. With this and other objects not specifically mentioned in view, the invention consists in certain constructions and combinations hereinafter described and then specifically claimed.

In the accompanying drawing which forms a part of this specification and in which like characters of reference indicate the same or like parts:

Fig. l is a sectional end elevation of a portion of a cigarette machine tobacco feed equipped with the dust separator; and

Fig. 2 is a plan View of the same taken on line 22 of Fig. 1.

In carrying the invention into effect there is provided a pin roller, a chute, a picker roller having pins on its periphery adapted to remove tobacco from the pin roller and deliver it to the chute, and a concave partially surrounding the picker roller, the lower end of the concave being disposed outside the chute and spaced therefrom, and the ends of the pins on the picker roller being suficiently close to the inner face of the concave to remove tobacco dust and hardened lumps thereon, whereby the dust and tobacco lumps thus loosened fall along the inner face of the concave and drop through the space between the lower end of the concave and'the chute. These various means and parts may be widely varied in construction within the scope of the claims, for the particular device selected to illustrate the invention is but one of many possible concrete embodiments of the same. The invention, therefore, is not to be restricted to the specific construction shown and described.

In a cigarette machine tobacco feed, the tobacco picked up from the feed magazine by the main feed drum (not shown), is fed onto a feed belt 5 which runs over a roller 6 on a shaft 7 and carries the tobacco layer T towards a pin roller 8 mounted on a shaft 9. The tobacco layer T falling from the belt 5 onto the pin roller 8 is carried by the latter supported by the frames 18.

Serial N0. 639,910.

past a roller 10 which compresses the tobacco. The tobacco T is then carried around by the pin roller 8, until it encounters the picker roller 11, the pins of which move in the opposite direction and throw the tobacco T through chute 12 onto the continuously running cigarette paper strip P or a conveyor belt. Chute 12 is supported by brackets 13 mounted on the main frame of the machine, and leads into the feeding channel 14: which guides the paper strip P or the conveyor belt. The throw of the tobacco T in chute 12 is directed in an even stream by the flat side 15 of the stationary concave member 16 which partly surrounds the pin roller 8. Picker roller 11 is mounted on a shaft 17 which is The bearings 19 carried by frames 18 support the rollers 8 and 11.

The stationary concave 20 which partly surrounds the picker roller 11, is so mounted that an opening 21 is provided between its lower end and the chute 12. The pins of the roller 11 are sufficiently close to the concave 20 to loosen thetobacco dust or hardened lumps from its inner periphery. The dust D thus loosened falls along the contour of the concave 20 and finally drops through the opening 21.

What is claimed is:

1. The combination with the pin roller of a cigarette machine feed, of a chute, a rotating picker roller having pins adapted to remove tobacco from said pin roller and deliver it to said chute, and a concave partially surrounding said picker roller, the lower end of said concave being disposed outside said chute and spaced therefrom, and the ends of the pins on said picker roller being sufliciently close to the inner face of said concave to loosen tobacco dust and hardened lumps thereon, whereby the dust and tobacco lumps thus loosened fall along the inner face of the concave and drop through the space between the lower end of the concave and the chute.

2. The combination with a tobacco chute, of a rotating picker roller provided with pins on its periphery, and a concave partially surrounding said picker roller, the lower end of said concave being disposed outside said chute and spaced therefrom, and the ends of said pins being sufiiciently close to the inner face of said concave to loosen tobacco dust and hardened lumps thereon, whereby the dust and lumps thus loosened fall along the inner face of the concave and drop through the space between the lower end of the concave and the chute.

In testimonywhereof, I have signed'my name to this specification.

ELBERON D. SMITH. 

